The CPU Shack’s list of test boards continues to grow. Today we now have available a board for testing RCA COSMAC processors including the CDP1802 1804 1805 and 1806. These early CMOS processors are still being made 40 years after their introduction in 1975. Being a CMOS design, the boards are a bit simpler to make (simpler power supplies) and thus a bit less expensive. They are in stock and shipping now for $89.95.

Also available are new expansion boards for the MCS-80 boards. In addition to the Zilog Z80 and Intel 8085 expansions, an expansion is now available for the National Semiconductor NSC800. Introduced in 1979 this CMOS processor is a hybrid of the Z80 and i8085, taking features of both to greatly enhance the Z80 architecture.

NSC800 Expansion Board

These expansions are available at the same price as the previous ones, $29.95 with FREE Shipping. They can be ordered from the MCS-80 Expansion page.

The Largest CPU Museum!

In my daily hunt for new processors, and other chips for the museum, as well as information about new chips, I constantly come across interesting chips, in strange locations. Here you will get a chance to learn WHERE many of the chips in the museum come from and what they are.